KR960032504A

KR960032504A - Bending and torsion measuring devices for nuclear fuel assemblies

Info

Publication number: KR960032504A
Application number: KR1019960002878A
Authority: KR
Inventors: 리차드 지. 맥클레랜드; 하우워드 디. 크로스
Original assignee: 베르니에 엔. 펨레이테; 지멘스 파워 코포레이션
Priority date: 1995-02-14
Filing date: 1996-02-07
Publication date: 1996-09-17
Also published as: EP0727787B1; TW312792B; EP0727787A2; JPH08248178A; DE69603098D1; US5661766A; DE69603098T2; EP0727787A3; JP3616448B2; ES2135801T3

Abstract

연료 조립체의 휨 및 비틀림 측정 장치는 고정 장치, 기준 장치 및 초음파 측정 장치를 포함한다.The bending and torsion measuring device of the fuel assembly includes a fixing device, a reference device and an ultrasonic measuring device.

Description

Bending and torsion measuring devices for nuclear fuel assemblies

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 연료 조립체의 휨 및 비틀림 측정 기구를 도시한 부분 단면 측면도.FIG. 1 is a partial cross-sectional side view showing the bending and torsion measuring mechanism of the fuel assembly of the present invention. FIG.

제2도는 제1도에서 도시한 장치의 2~2선에 따른 단면도.2 is a cross-sectional view taken along line 2--2 of the apparatus shown in FIG. 1;

제3도는 초음파 트랜스 폰더, 트랜스 폰더 홀딩 블록, 및 초음파 결함 탐지기를 도시하는 벽내부의 슬롯에 위치하는 측정 시스템도를 도시하는 도면.Figure 3 shows a measurement system diagram located in a slot inside a wall showing an ultrasonic transponder, a transponder holding block, and an ultrasonic flaw detector.

Claims

Positioned and positioned to receive the heat conducting fins extending from the underside of the upper core support plate and having a heat conducting fins at the lower end that are oriented and positioned to engage corresponding heat conducting holes in the reactor lower core support plate and extend downwardly from the lower strut fin, The apparatus comprising an elongate fixture defining an interior volume for the nuclear fuel assembly and an elongate fixture extending from an upper end of the fixture to a lower end of the fixture, One or more reference wires, one of which is arranged in parallel to a predetermined longitudinal axis of the fixture, and a transducer, and an ultrasonic probe for receiving signals of the first and second reflected waves from the transponder, And a signal of the first reflected wave and a signal of the second reflected wave A transmitting means for transmitting from the spawn further by an ultrasonic flaw detector, and; The fixture having an opening through which the fuel assembly is received and arranged toward the upper end of the fixture and a position having a longitudinal axis extending from the lower side to fit inside the opening and engage the upper alignment hole in the upper strut board of the fuel assembly A removable upper portion having a selection pin and a bottom reference plate having a second longitudinal axis at a lower end to define a locating hole and to receive a lower alignment pin of the fuel assembly, Wherein the locating hole engages a lower orifice of the fuel assembly and an upper orifice of the fuel assembly to constrain the fuel assembly as if the fuel assembly were located within the reactor and wherein at least one of the first and second longitudinal axis Wherein the ultrasonic measuring device is adapted to detect at least one of the one or more To receive the first reflected wave from the ultrasound signal reflected from the at least one reference wire at the back of the transponder and to receive the second reflected wave from the ultrasound signal reflected from the fuel assembly at the rear of the transponder Wherein the time difference value between the first and second reflected waves is a measurement distance from the one or more reference wires to the fuel assembly.

2. The apparatus of claim 1, wherein the fixture has a slot extending longitudinally therethrough.

※ Note: It is disclosed by the contents of the first application.